· 操作步骤
无网络连接时使用
1.连接光盘
2.挂载光盘
[root@xiudaochengxian ~]# mount /dev/cdrom /mnt
mount: /dev/sr0 is write-protected, mounting read-only
[root@xiudaochengxian ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 17G 3.5G 14G 21% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 36M 1.9G 2% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/sda1 1014M 165M 850M 17% /boot
tmpfs 378M 44K 378M 1% /run/user/0
/dev/sr0 4.2G 4.2G 0 100% /mnt #挂载成功
3.编写挂载信息使其永久生效
[root@xiudaochengxian ~]# vim /etc/fstab
12 /dev/cdrom /media/cdrom iso9660 defaults 0 0
| 相关参数 | 作用 |
|---|---|
| /dev/cdrom | 设备名称 |
| /media/cdrom | 挂载点名称 |
| iso9660 | 光盘格式 |
| defaults 0 0 | 权限默认是否备份是否自动校验 |
4.进入yum仓库路径
[root@xiudaochengxian ~]# cd /etc/yum.repos.d/
[root@xiudaochengxian yum.repos.d]# ls
CentOS-Base.repo CentOS-fasttrack.repo CentOS-Vault.repo
CentOS-CR.repo CentOS-Media.repo
CentOS-Debuginfo.repo CentOS-Sources.repo
5.做备份
[root@xiudaochengxian yum.repos.d]# cp CentOS-Base.repo CentOS-Base.repo.bak
[root@xiudaochengxian yum.repos.d]# ls
CentOS-Base.repo CentOS-fasttrack.repo
CentOS-Base.repo.bak CentOS-Media.repo
CentOS-CR.repo CentOS-Sources.repo
CentOS-Debuginfo.repo CentOS-Vault.repo
6.编写yum仓库
[root@xiudaochengxian yum.repos.d]# vim CentOS-Base.repo
1.[base]
2 name=CentOS-$releasever - Base
3 baseurl=file:///mnt
4 gpgcheck=0
yum仓库模板
[ ] #[ ] 标识符
name= #name= 文件名称
baseurl= #baseurl= 挂载方式+挂载路径（file://文件方式；http://网络方式；ftp://文件传输方式）
enabled= #enabled= 是否开启yum仓库（1开启；0关闭）
gpgcheck= #gpgcheck= 是否进行校验（1进行校验；0关闭校验）
7.清理缓存
[root@xiudaochengxian yum.repos.d]# yum clean all
Loaded plugins: fastestmirror, langpacks
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
Cleaning repos: base
Cleaning up everything
Maybe you want: rm -rf /var/cache/yum, to also free up space taken by orphaned data from disabled or removed repos
Cleaning up list of fastest mirrors
8.新建缓存
[root@xiudaochengxian yum.repos.d]# yum makecache
Loaded plugins: fastestmirror, langpacks
Determining fastest mirrors
base | 3.6 kB 00:00
(1/4): base/group_gz | 166 kB 00:00
(2/4): base/primary_db | 3.1 MB 00:00
(3/4): base/filelists_db | 3.1 MB 00:00
(4/4): base/other_db | 1.3 MB 00:00
Metadata Cache Created
9.刷新仓库
[root@xiudaochengxian yum.repos.d]# yum repolist
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
repo id repo name status
base CentOS-7 - Base 3,971
repolist: 3,971
注：以上方法仅用于无网络连接，只有光盘镜像时使用